810834 has 16 divisors (see below), whose sum is σ = 1646688. Its totient is φ = 266112.

The previous prime is 810809. The next prime is 810839. The reversal of 810834 is 438018.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 810834.

It is not an unprimeable number, because it can be changed into a prime (810839) by changing a digit.

810834 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (102918).

2⁸¹⁰⁸³⁴ is an apocalyptic number.

810834 is an abundant number, since it is smaller than the sum of its proper divisors (835854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810834 is a wasteful number, since it uses less digits than its factorization.

810834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 810834 is about 900.4632141293. The cubic root of 810834 is about 93.2489571911.

Subtracting from 810834 its reverse (438018), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 810834 in words is "eight hundred ten thousand, eight hundred thirty-four".